package com.xiao.mapper;

import com.xiao.dao.classtable;
import com.xiao.dao.classtable2;
import com.xiao.dao.user2;
import org.apache.ibatis.annotations.Param;

import java.util.List;

public interface user2Mapper {
    List<user2> select();

    List<classtable> selectByName(@Param("username") String s);
    /*第二步*/
    List<user2> selectClassAndUser2ByIdTwo(@Param("id") Integer id);
}
